tunnel-doctor

tunnel-doctor is a System & environment troubleshooting skill for AI agents, published by daymade in the claude-code-skills repository on GitHub. Skillspace rates tunnel-doctor F (15/100) and the safety scan rated it unsafe; the rating is based on static analysis only.

Diagnoses and fixes Tailscale x proxy/VPN tool conflicts (Shadowrocket, Clash, Surge, OrbStack/Docker) on macOS — route hijacking, proxy env vars, system proxy bypass, SSH ProxyCommand double-tunneling, VM/container proxy propagation, stalled macOS DNS. Use when Tailscale ping works but SSH/HTTP times out, browser returns 503 but curl works, git push fails with "failed to begin relaying via HTTP", Docker pull/build times out behind TUN/VPN, setting up Tailscale SSH to WSL or remote dev over Tailscale, ssh/curl/git hang ~60s resolving a hostname while nslookup is instant, ping to a resolver works but dig times out, ssh -vvv freezes at "debug2: resolving", raw probes impossibly fast under a TUN (nc -z 0.00s), all DIRECT-routed sites fail at once (TLS handshake EOF, UNKNOWN_CERTIFICATE_VERIFICATION_ERROR, proxy CONNECT 503) while proxied sites work — TUN DIRECT split-brain — or a Windows host TUN (v2rayN) black-holing the whole machine incl. WSL and Tailscale (event-log forensics prove…

Grade
F
Quality
15 / 100
Safety
Unsafe
GitHub stars
1,269

Unproven: rated by static analysis only, not yet compared head-to-head.

Our two independent classifiers differ on this skill's category, so treat the placement as provisional.

This rating describes the version of the repository we crawled; it may have changed since.

View source on GitHubdaymade/claude-code-skills

Our review

Architecture
60 / 100
Maturity
Structured: ships references or scripts
Security scan
Critical-risk patterns
License
MIT
Adoption
Adopted by 0 other repositories, in 1 collections

What the scanner flagged

  • pipe remote script to shell
  • accesses sensitive system files

Not checked yet

  • Not judged on the rubric yet (not a contender in its category)
  • No blind task eval yet
  • Scope (portable / vendor / repo-internal) not assessed; only the top of each category is read for scope
  • Sibling files (scripts, references) not fetched; security scan covers SKILL.md only

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